Depending on the domestic support Rouhani can build, Iran may be inclined towards a more critical stance on Putin's territorial expansionism for the sake of rebuilding relations with the EU states and preventing Ukraine's break-up from setting a precedent for Iran's own ethnic problems.

The months ahead will be very difficult that require wisdom, experience and perseverance - more so if the deal has less to do with achievements or mistakes and more with temporary respites that the parties might - or might not - pull off.

Netanyahu will hope his speech further galvanises the already considerable international efforts to pressure Iran through sanctions and diplomacy to stop enrichment, at least to the 20% level. Netanyahu knows that the international community is keen to prevent Iran getting a bomb, but also to prevent Israel from resorting to military action.